84=-2(5k-7)

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Solution for 84=-2(5k-7) equation:


Simplifying
84 = -2(5k + -7)

Reorder the terms:
84 = -2(-7 + 5k)
84 = (-7 * -2 + 5k * -2)
84 = (14 + -10k)

Solving
84 = 14 + -10k

Solving for variable 'k'.

Move all terms containing k to the left, all other terms to the right.

Add '10k' to each side of the equation.
84 + 10k = 14 + -10k + 10k

Combine like terms: -10k + 10k = 0
84 + 10k = 14 + 0
84 + 10k = 14

Add '-84' to each side of the equation.
84 + -84 + 10k = 14 + -84

Combine like terms: 84 + -84 = 0
0 + 10k = 14 + -84
10k = 14 + -84

Combine like terms: 14 + -84 = -70
10k = -70

Divide each side by '10'.
k = -7

Simplifying
k = -7

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